package qwer;

import java.util.Scanner;

public class NO1
{
   public static void main(String[] args)
   {
      Scanner in = new Scanner(System.in);
      while(in.hasNextInt()){
    	  int a = in.nextInt();
    	  int b = in.nextInt();
    	  if(a>1000) 
    		  System.out .println("a<=1000");
    	  else 
    	  System.out .println(a + b);
      }
   }
}
